Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Social Democrata tem o Centro Democrático e Social de 4,4% 4 assentos?
 ###Tabelas: CREATE TABLE nominations (nominations_id AUTO_INCREMENT PRIMARY KEY, Week 1 VARCHAR, Week 2 VARCHAR, Week 3 VARCHAR, Week 4 VARCHAR, Week 5 VARCHAR, Week 6 VARCHAR, Week 7 VARCHAR, Week 8 VARCHAR, Week 9 VARCHAR, Week 10 FINAL VARCHAR) CREATE TABLE nhl_coins (nhl_coins_id AUTO_INCREMENT PRIMARY KEY, Year INT, Theme VARCHAR, Artist VARCHAR, Issue Price INT, Special Notes VARCHAR) CREATE TABLE replaced_pageants (replaced_pageants_id AUTO_INCREMENT PRIMARY KEY, Country/Territory VARCHAR, Former pageant VARCHAR, Last competed INT, New pageant VARCHAR, Franchise since INT) CREATE TABLE top_goal_scorers (top_goal_scorers_id AUTO_INCREMENT PRIMARY KEY, Place INT, Scorer VARCHAR, Goals INT, Appearances INT, Team VARCHAR) CREATE TABLE opinion_polling (opinion_polling_id AUTO_INCREMENT PRIMARY KEY, Date Released VARCHAR, Institute VARCHAR, Social Democratic VARCHAR, Socialist VARCHAR, Green-Communist VARCHAR, Democratic Renewal VARCHAR, Democratic and Social Centre VARCHAR, Lead VARCHAR)  
SELECT Social Democratic FROM opinion_polling WHERE Democratic and Social Centre = 4.4% 4 seats